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view src/http/modules/ngx_http_ssl_module.h @ 7702:7015f26aef90

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Cache: ignore stale-if-error for 4xx and 5xx codes. Previously the stale-if-error extension of the Cache-Control upstream header triggered the return of a stale response for all error conditions that can be specified in the proxy_cache_use_stale directive. The list of these errors includes both network/timeout/format errors, as well as some HTTP codes like 503, 504, 403, 429 etc. The latter prevented a cache entry from being updated by a response with any of these HTTP codes during the stale-if-error period. Now stale-if-error only works for network/timeout/format errors and ignores the upstream HTTP code. The return of a stale response for certain HTTP codes is still possible using the proxy_cache_use_stale directive. This change also applies to the stale-while-revalidate extension of the Cache-Control header, which triggers stale-if-error if it is missing. Reported at http://mailman.nginx.org/pipermail/nginx/2020-July/059723.html.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 29 Jul 2020 13:28:04 +0300
parents b56f725dd4bb
children 3bff3f397c05 7995cd199b52
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_HTTP_SSL_H_INCLUDED_
#define _NGX_HTTP_SSL_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>
#include <ngx_http.h>


typedef struct {
    ngx_flag_t                      enable;

    ngx_ssl_t                       ssl;

    ngx_flag_t                      prefer_server_ciphers;
    ngx_flag_t                      early_data;

    ngx_uint_t                      protocols;

    ngx_uint_t                      verify;
    ngx_uint_t                      verify_depth;

    size_t                          buffer_size;

    ssize_t                         builtin_session_cache;

    time_t                          session_timeout;

    ngx_array_t                    *certificates;
    ngx_array_t                    *certificate_keys;

    ngx_array_t                    *certificate_values;
    ngx_array_t                    *certificate_key_values;

    ngx_str_t                       dhparam;
    ngx_str_t                       ecdh_curve;
    ngx_str_t                       client_certificate;
    ngx_str_t                       trusted_certificate;
    ngx_str_t                       crl;

    ngx_str_t                       ciphers;

    ngx_array_t                    *passwords;

    ngx_shm_zone_t                 *shm_zone;

    ngx_flag_t                      session_tickets;
    ngx_array_t                    *session_ticket_keys;

    ngx_uint_t                      ocsp;
    ngx_str_t                       ocsp_responder;
    ngx_shm_zone_t                 *ocsp_cache_zone;

    ngx_flag_t                      stapling;
    ngx_flag_t                      stapling_verify;
    ngx_str_t                       stapling_file;
    ngx_str_t                       stapling_responder;

    u_char                         *file;
    ngx_uint_t                      line;
} ngx_http_ssl_srv_conf_t;


extern ngx_module_t  ngx_http_ssl_module;


#endif /* _NGX_HTTP_SSL_H_INCLUDED_ */